Don't let the picture fool you... I've geared with "Developer Gears" so I can endure lots of damage before die, but for you... Uhmm... I can't say the same thing :) so you have two choice... Install the other "Official" DLC's of Fallout 3 and get more powerful weapons. Or try to slip past with stealth. (On the end of this tunnel you'll encounter with a Reactor room which has more powerful bots patrolling around.)
Don't let the picture fool you... I've geared with "Developer Gears" so I can endure lots of damage before die, but for you... Uhmm... I can't say the same thing :) so you have two choice... Install the other "Official" DLC's of Fallout 3 and get more powerful weapons. Or try to slip past with stealth. (On the end of this tunnel you'll encounter with a Reactor room which has more powerful bots patrolling around.)
P.S. This is not an Official DLC of Fallout 3